Recently Sylvia was the DSM on Seven Methods of Killing Kylie Jenner at the Royal Court.

Some of her other theatre credits include A Beautiful City, Besieged, Three NYT Playing Up, A Guide to Second Date Sex, Strong Arm Edinburgh Festival: Underbelly Venue, Nine Night (Dorfman), Pericles (Olivier) National Theatre, Barbershop Chronicles USA and Canada Tour, Richard II The Globe Theatre: Sam Wanamaker Playhouse, Fairview Young Vic, Rockets and Blue Lights Manchester Royal Exchange Theatre and Typical (film), Halfbreed (film and India tour) Soho Theatre, Living Newspaper: Edition 2 Royal Court Theatre.

In addition to this,  she is a trustee of the National Youth Theatre of Great Britain, Board Governor for Rose Bruford and the Founder/Director of Backstage Niche.